Source Code Cross Referenced for CoordinateAccess.java in  » GIS » GeoTools-2.4.1 » org » geotools » data » oracle » sdo » Java Source Code / Java DocumentationJava Source Code and Java Documentation

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Java Source Code / Java Documentation » GIS » GeoTools 2.4.1 » org.geotools.data.oracle.sdo 
Source Cross Referenced  Class Diagram Java Document (Java Doc) 


001:        /*
002:         *    GeoTools - OpenSource mapping toolkit
003:         *    http://geotools.org
004:         *    (C) 2003-2006, Geotools Project Managment Committee (PMC)
005:         *    (C) 2003  Refractions Research Inc.
006:         *    
007:         *    This library is free software; you can redistribute it and/or
008:         *    modify it under the terms of the GNU Lesser General Public
009:         *    License as published by the Free Software Foundation; either
010:         *    version 2.1 of the License, or (at your option) any later version.
011:         *
012:         *    This library is distributed in the hope that it will be useful,
013:         *    but WITHOUT ANY WARRANTY; without even the implied warranty of
014:         *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
015:         *    Lesser General Public License for more details.
016:         *
017:         *    Refractions Research Inc. Can be found on the web at:
018:         *    http://www.refractions.net/
019:         */
020:        package org.geotools.data.oracle.sdo;
021:
022:        import com.vividsolutions.jts.geom.CoordinateSequence;
023:
024:        /**
025:         * Allows manipulation of a Geometry's CoordianteSequece.
026:         * 
027:         * <p>
028:         * The number of ordinates in each Coordiante is getDimension() + getNumAttributes()<br>
029:         * The examples given in this interface are based on a 2-dimensional
030:         * coordinate system, x and y,<br>
031:         * with two attributes: z and t.<br>
032:         * In this case z is the third dimension, but is not used for rendering and
033:         * the coordinate<br>
034:         * remains 2-dimensional.
035:         * </p>
036:         *
037:         * @author jgarnett
038:         * @source $URL: http://svn.geotools.org/geotools/tags/2.4.1/modules/unsupported/oracle-spatial/src/main/java/org/geotools/data/oracle/sdo/CoordinateAccess.java $
039:         */
040:        public interface CoordinateAccess extends CoordinateSequence {
041:            /**
042:             * Retrieve the number of spatial dimensions of Coordiantes.
043:             * 
044:             * <p>
045:             * This is the number of spatially significant ordiantes (usually 2 or 3)
046:             * </p>
047:             *
048:             * @return Number of spatially signficant ordinates
049:             */
050:            int getDimension();
051:
052:            /**
053:             * Retrieve number of measures associated with a Coordiantes
054:             * 
055:             * <p>
056:             * This is the number of non spatially significant ordinates.
057:             * </p>
058:             *
059:             * @return Number of measures, or 0 if measures not used
060:             */
061:            int getNumAttributes();
062:
063:            /**
064:             * Retrive a single ordinate
065:             *
066:             * @param coordinate Coordinate to retrive from
067:             * @param ordinate Ordinate to retrive from coordiante
068:             *
069:             * @return Specified ordinate
070:             */
071:            double getOrdinate(int coordinate, int ordinate);
072:
073:            /**
074:             * getAttribute purpose.
075:             * 
076:             * <p>
077:             * attribute is between 0 and getNumAttributes()
078:             * </p>
079:             *
080:             * @param coordinate
081:             * @param attribute is between 0 and getNumAttributes()
082:             *
083:             */
084:            Object getAttribute(int coordinate, int attribute);
085:
086:            /**
087:             * Set a single ordinate.
088:             *
089:             * @param coordinate Corrdinate to modify
090:             * @param ordinate Ordinate to modify in coordinate
091:             * @param value new value
092:             */
093:            void setOrdinate(int coordinate, int ordinate, double value);
094:
095:            /**
096:             * setAttribute purpose.
097:             * 
098:             * <p>
099:             * attribute is between 0 and getNumAttributes()
100:             * </p>
101:             *
102:             * @param coordinate the coordinate to be modified
103:             * @param attribute between 0 and getNumAttributes()
104:             * @param value
105:             */
106:            void setAttribute(int coordinate, int attribute, Object value);
107:
108:            /**
109:             * Retrive ordinates as an array.
110:             * 
111:             * <p>
112:             * Example: (x,y) getDimension()==2<br>
113:             * This is defined for the number of dimensions. If the other attributes
114:             * happen to be a double, they can still be accessed by using an ordinate
115:             * value geater than getDimension().
116:             * </p>
117:             * 
118:             * <ul>
119:             * <li>
120:             * ordinate 0: x ordinate
121:             * </li>
122:             * <li>
123:             * ordinate 1: y ordinate
124:             * </li>
125:             * <li>
126:             * ordinate 2: m attribute
127:             * </li>
128:             * <li>
129:             * ordinate 3: g attribute
130:             * </li>
131:             * </ul>
132:             * 
133:             *
134:             * @param ordinate Ordinate to retrieve. ordinate is less than <br>
135:             *        getDimension()+getMeasures() if the measures are doubles as
136:             *        well. Otherwise<br>
137:             *        ordinate is less than getDimensions().
138:             *
139:             * @return ordinate array
140:             */
141:            double[] toOrdinateArray(int ordinate);
142:
143:            /**
144:             * toAttributeArray purpose.
145:             * 
146:             * <p>
147:             * Description ...
148:             * </p>
149:             *
150:             * @param attribute Between 0 and getNumAttrributes()
151:             *
152:             * @return an array of attributes
153:             */
154:            Object[] toAttributeArray(int attribute);
155:
156:            /**
157:             * Supplies an array of ordiantes.
158:             * 
159:             * <p>
160:             * The ordinateArray should be the same length as the CoordinateSequence.<br>
161:             * ordinate should be between 0 and getDimension().<br>
162:             * If the attributes are doubles as well, then ordinate can be as great as<br>
163:             * getDimension() + getNumAttributes().
164:             * </p>
165:             */
166:            void setOrdinateArray(int ordinate, double[] ordinateArray);
167:
168:            /**
169:             * setAttributeArray purpose.
170:             * 
171:             * <p>
172:             * Description ...
173:             * </p>
174:             *
175:             * @param attribute between 0 and getNumAttributes()
176:             * @param attributeArray May be an object or primative array
177:             */
178:            void setAttributeArray(int attribute, Object attributeArray);
179:
180:            /**
181:             * Retrieve ordinate information (an array of ordinates for each
182:             * coordinate).
183:             * 
184:             * <p>
185:             * Example: (x,y,m,g) getDimension()==2, getNumAttributes()==2
186:             * </p>
187:             * <pre><code>
188:             * [ [ x1, x2,...,xN], [ y1, y2,...,yN] ]
189:             * </code></pre>
190:             *
191:             * @return column major ordinate arrays (these are spatially significant)
192:             */
193:            double[][] toOrdinateArrays();
194:
195:            /**
196:             * Retrieve Attribute information (an array of attributes for each
197:             * coordiante).
198:             * 
199:             * <p>
200:             * Example: (x,y,m,g) getDimension()==2, getAttributes()==2
201:             * </p>
202:             * <pre><code>
203:             * [ [ m1, m2,...,mN], [ g1, g2,..., gN] ]
204:             * </code></pre>
205:             * 
206:             * <p></p>
207:             *
208:             * @return Attribute Arrays, may be object or primative arrays
209:             */
210:            Object[] toAttributeArrays();
211:
212:            /**
213:             * Completely replace sequence with the provided information.
214:             * 
215:             * <p>
216:             * Example: (x,y,m,g) getDimension()==2, getNumAttributes()==2
217:             * </p>
218:             * <pre><code>
219:             * <b>dimensions</b>:[ [ x1, x2,...,xN], [ y1, y2,...,yN] ]
220:             * <b>attributes</b>:[ [ m1, m2,...,mN], [ g1, g2,..., gN] ]
221:             * </code></pre>
222:             *
223:             * @param ordinateArrays  dimensions column major ordinate arrays 
224:             *                        (these are spatially significant)
225:             * @param attributeArrays Indiviual attribute arrays may be primative or
226:             *                        object arrays
227:             */
228:            void setCoordinateArrays(double[][] ordinateArrays,
229:                    Object[] attributeArrays);
230:
231:            /**
232:             * Allows modification of a single coordinate (including attribute values).
233:             * 
234:             * <p>
235:             * Normal Use: where D is getDimensions() and N is getNumAttributes():
236:             * </p>
237:             * <pre><code>
238:             * <b>dimensions</b>: [ ordX, ordY, ..., ordD ]
239:             * <b>attributes</b>: [ atr1, atr2, ...., atrN ]
240:             * </code></pre>
241:             * 
242:             * <p>
243:             * When dealing with attributes that are all double values the ordinates
244:             * array may be used to set both ordinates and attribute values.
245:             * </p>
246:             * 
247:             * <p>
248:             * Optimized Use: where D is getDimensions() and N is getNumAttributes():
249:             * </p>
250:             * <pre><code>
251:             * <b>dimensions</b>: [ ordX, ordY, ..., ordD, atr1, atr2, ... attrN ]
252:             * <b>attributes</b>: null
253:             * </code></pre>
254:             * 
255:             * <p></p>
256:             *
257:             * @param coordinate index of coordiante to be modified
258:             * @param ordinates array ordinate values (may be extended with attribute
259:             *        values)
260:             * @param attributes array of attribute values, or null is ordinates has
261:             *        been extended
262:             */
263:            void setAt(int coordinate, double[] ordinates, Object[] attributes);
264:        }
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